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Work around gcc warning

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This shuts up a 300-line warning that includes

  /nix/store/fg7ass3a5m5pgl26qzfdniicbwbgzccy-gcc-13.2.0/include/c++/13.2.0/bits/stl_tree.h:182:25: warning: ‘*(std::_Rb_tree_header*)((char*)&<unnamed> + offsetof(nix::value_type, nix::DerivedPath::<unnamed>.std::variant<nix::DerivedPathOpaque, nix::DerivedPathBuilt>::<unnamed>.std::__detail::__variant::_Variant_base<nix::DerivedPathOpaque, nix::DerivedPathBuilt>::<unnamed>.std::__detail::__variant::_Move_assign_base<false, nix::DerivedPathOpaque, nix::DerivedPathBuilt>::<unnamed>.std::__detail::__variant::_Copy_assign_base<false, nix::DerivedPathOpaque, nix::DerivedPathBuilt>::<unnamed>.std::__detail::__variant::_Move_ctor_base<false, nix::DerivedPathOpaque, nix::DerivedPathBuilt>::<unnamed>.std::__detail::__variant::_Copy_ctor_base<false, nix::DerivedPathOpaque, nix::DerivedPathBuilt>::<unnamed>.std::__detail::__variant::_Variant_storage<false, nix::DerivedPathOpaque, nix::DerivedPathBuilt>::_M_u) + 24).std::_Rb_tree_header::_M_header.std::_Rb_tree_node_base::_M_parent’ may be used uninitialized [-Wmaybe-uninitialized]
    182 |       if (__x._M_header._M_parent != nullptr)
        |           ~~~~~~~~~~~~~~^~~~~~~~~
This commit is contained in:
Eelco Dolstra 2024-11-25 15:59:43 +01:00
parent 7e68306a4b
commit 57fea81f8a
1 changed files with 3 additions and 2 deletions
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5
src/nix/flake.cc
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@ -643,10 +643,11 @@ struct CmdFlakeCheck : FlakeCommand
fmt("%s.%s.%s", name, attr_name, state->symbols[attr2.name]), fmt("%s.%s.%s", name, attr_name, state->symbols[attr2.name]),
*attr2.value, attr2.pos); *attr2.value, attr2.pos);
if (drvPath && attr_name == settings.thisSystem.get()) { if (drvPath && attr_name == settings.thisSystem.get()) {
drvPaths.push_back(DerivedPath::Built { auto path = DerivedPath::Built {
.drvPath = makeConstantStorePathRef(*drvPath), .drvPath = makeConstantStorePathRef(*drvPath),
.outputs = OutputsSpec::All { }, .outputs = OutputsSpec::All { },
}); };
drvPaths.push_back(std::move(path));
} }
} }
} }